Solve the system of equations

1 answer:

5 0

Because both answers equal y, we can set them equal to each other. So, -8x=-5x-9. Add five over to get -3x=-9. Divide and x=3. Then plug 3 in to solve for y. -8(3)=24. The ordered pair is (3,24).

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A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. A group of 11 individuals pays $5.90 for their fare.

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A------------> number of children
B------------> number of adults

we know that
0.40A+0.70B=5.90--------------------------> equation 1
A+B=11------------> A=11-B----------------> equation 2

using a graph tool------------> to resolve the equations system
see the attached figure

the solution is
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B=5

the answer is
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